Rivet-driving machine.



No. 4a's'smaa.- l l -P- ATBNTED `DEC. z5, 190.6, l Iysa-p.'ALLISON,si@.RLVBT DRIVING MACHINE.

- APPL'Io-ATION FILED AUG. .7,19o5.

.THE Naam: Ptrnzs cq, wAsHkIrwmN. D. e,

UNITED sTA-TEs PATENT oFFIoE.

A OORPORATlON OF MAINE.V

MAINE, ASSIGNOR TO THE OF KENNEBUNK, MAINE,

RlVET-DRIVING MACHINE.

To all whom it may concern:

Be it known that l, WILLIAM P. ALLIsoN,

Sr., of Kennebunk, in the county of York and State of Maine, haveinvented certain new and useful `Improvements in v Rivet- DrivingMachines, of which the following is a specification.

My invention relates to machines for inl serting rivets in sheetmaterial, such as fiber they may be clenchedas they are set in thematerial. l u

My machine consists of an upright standard-frame carrying twohorizontally-projecting arms between which the lap of the sheetsof'material to be united is clamped, and in l one of said arms isinserted a slide carrying a Y scription following.

row of rivets which are by the action of suitable mechanism forcedthrough the material totheir proper places, each rivet acting as itsvown punch, all as set forth in the detailed dev In the drawingsaccompanying this speci- .fication and forming a part thereof, Figure 1vis a perspective of the machine; Fig. 2, an end view, Fig. 3, alongitudinal vertical section; Fig. 4, a cross-section; Figs. 5 and 6,enlarged details; Fig. 7, aview of the slide carrying the rivets; Fig.8, an enlarged view, and Fig. 9 a perspective of a portion of the same;Fig.0 10, an end view of the horizontal arms, partly in section.

The working parts of the machine are supported on a frame consisting ofa base 1, caring the heavy webbed upright 2.at one end and at the otheran upright pillar 3. Extending from the upright 2 to the pillar 3 andsupported thereon is the horizontal hollow beam 4, and above it is thearm 5, projecting from and supported by the upright 2.

VThe outer. end of arm V5 is held to the beam 4, when desired, by aswinging lever 6, which is jointed to the end of beam 4, (see Fig. 10)and may be swung upward so as to pass between two lugs 17 on the end ofthe 4upper arm 5. A` pivoted handle 30 embraces the end of this leverand presses upon,A

y Specification of Letters Patent.

Application filed August 7,1905. Serialllox 272,984.

Patented Dee. 25, 1906.

the top ofthe lugs 17, and as its rounded end is made slightlycam-shaped it grips the lugs st ongly when moved to the horizontalposition, (shown in dotted lines in Fig. 3 and thus the arm 5 is heldfrom` springing away from the beam 4 whenppressure is exerted in theoperation of the machine.

The upright member 2 of the frame carries two shafts 7 and 10 inbracket-boxes extending therefrom. The upper shaft 7 carries a gear 8and a cam-wheel 9. The lower shaft 10 carries a pinion 15 meshing intothe gear 8 and a pulley 1 1 loose on the shaft, but which is connectedto a clutch 12, so that the shafts may be started or stopped by theengagement or disengagement of the clutch with the pulley to which thedriving power is attached. This clutch is operated through thehorizontal rodl 13, running the length of the machinek and hung inbearings in the upright 2 and pillar 3. At the end of this rod nearestthe clutch and directly below it is attached an arm 14, which operatesthe clutch when the rod is turned on its axis, as it may be by thelever-handle 16 near its opposite end.

The beam 4 (shown in cross-section in Fig. 4). has a rectangular recessextending its whole length, in the bottom of which lies a bar 18, whichis longitudinally movable for a short distance and is operated by thebellcrank lever 20, which isconnected by a vertical rod 21 with anotherbell-crank lever 22 near the base of the machine and which is operatedfrom the treadle and lever 23, connected by the horizontal rod 24. (SeeFig. 1.)k When the treadle 23 is depressed, it moves the horizontal rod24 to the right and the vertical rod21 downward, and this draws the bar18 toward the left.

In Fig. 1 will be seen a pawl 25 just above the treadle, which enters aratchet on the side of the pillar 3, so as to hold the treadle .and itsconnections in the position in which they are placed by the depressionof the treadle. L

lby the Ainclined projections and notches.

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When the bar 18 is drawn to the left, the holes in it register with theholes in 19.

Figs. 5 and 6 show enlarged sections of the bars 18 and 19, the formershowing small anvils a a, with an upper contour adapting them j to turnthe points of split or pronged rivets when pressed upon them. The lattersection, Fig. 6, shows no anvils, but circular holes c Tc, which act asdies to allow the fiatended rivets shown above them to act as punches tocarry a piece of material down through them. In the case of prongedrivets i they are clenched, but solid rivets are punched through thematerial and headed by a subsequent operation. Coming now to the upperbeam 5, as shown in Figs. 3 and 4, it contains a verticallymovable bar26 and a horizontally-movable one 27. This latter is operated by thecarnwheel 9, to which it is connected by the rod 28 and open frame 29, aportion of which incloses the cam-wheel 9. The rod 28 is threaded, andnutsl d d allow of adjustment. Lugs 31 are pivoted to the bar 27 inpairs, each pair having a common pivot at one end and the other end ofeach pivoted one to the bar 26 the other to the upper portion of the arm5, so as to form knuckle-joints, and as the bar 28 is drawn to the leftby the cam 9 the bar 26 is depressed. This bar 26 carries a series ofpunches p p, that register with the anvils or holes in bar 19 in thelower beam 4. Figs. 7, 8, and 9 show a long slender trough, of steel,containing a row of dies :1c made in halves, which are heldin place bysprings z, riveted to each and to the sides ofthe trough. These dies areeach to hold a rivet supported by its head, and when so loaded the stripcontaining the dies and rivets is slipped into the arm 5 and, supportedby lugs 32, is so placed that the rivets are each directly under one ofthe punches in the bar 26 and over an anvil or hole in bar 19.

In Fig. 10 is shown in section a sheet of material 33, bent into acylindrical form with the edges lapped and a rivet passed through thelap. In operating the machine on a cylindrical can, as shown in Fig. 10,the edges of the material to be united are lapped and placed around thearm 5, with the lap directly below it. The bar 6 is thrown up, lockingthe arm 5 to the beam 4. Then the treadle 23 is depressed, therebydrawing the bar 18 to the left, and thus raising the anvil-bar 19, so asto clamp the material to be operated on closely between the anvil-bar 19and the supports 32 of the slide, Fig. 7, carrying the rivets. Thelever-handle 16 is then lifted, thereby operating the clutch 12, and therevolution of the pulley is communicated to the shaft 10 with itspinion, and thereby upper shaft 7 and its cam are revolved, drawing thebar 27 to the left and forcing down the punchbar 26 and driving therivets in the slide through and out of the dies a: a; and into and lthrough the stock. The halves of the dies x separate when the punchforces the rivets down, so as te allow their heads to pass through.

I claim` 1. In a machine of the character described` the combination ofa supporting-frame includ- Vlng two parallel beams, a laterally-movablebar parallel to and supported by one of said beams, a series ofprojecting studs or drivers carried by said bar, and means for givingsaid bar a reciprocating motion at right angles to its axis, a series ofrivet-holders registering with said drivers, said rivet-holders havingtapering apertures the larger diameters of which are at least as largeas the heads of the rivets to be suspended therein and each composed oftwo parts which join in the plane of the axis of the said aperture,independent springs united to each of said parts and normally holdingthem in contact, and a removable frame inclosing the series of holdersand to which said springs are also joined, thus uniting the said holdersin a series which when in place in the machine keeps them in registerwith the said drivers and which may be removed for convenience offilling with rivets, all arranged and to operate as herein set forth.

2. In a machine of the character described, the combination of a seriesof drivers, means for moving them simultaneously in the direction oftheir axes, a series of rivet-holders registering with said drivers,said rivetholders having tapering apertures the larger diameters ofwhich are at least as large as the heads of the rivets to be suspendedtherein and each composed of two parts which join in the plane of theaxis of the said aperture, independent springs united to each of saidparts and normally holding them in contact, and a removable frameinelosing the series of holders and to which said springs are alsojoined, thus uniting the said holders in a series, which, when in placein the machine, keeps them in register with the said drivers, and whichmay be removed for convenience of filling with rivets; all arranged andto operate as herein set forth.

3. In a machine ofthe character described, a removable frame, a seriesof rivet-holders mounted thereon having tapering apertures, the largerdiameters of which are at least as large as the head of the rivet to besuspended therein and cach composed of two parts which join in the planeof the axis of the said aperture, independent springs united to each ofsaid parts and normally holding them in contact, and also joined to saidframe, thus uniting the said holders in a series, which, when in placein the machine, keeps them in register with the said drivers, and whichmay be removed for convenience of filling with rivets, substantially asshown and d escribed.

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" inthe machinefkeeps them in register with l 4. .Inamachine ofthecharacter described, the combinationof a supporting-frame including twoparallel beams, a laterally-movable bar parallel to and supported by oneof said beams, yaseries of projecting studs or drivers carrled kbysaidbar and means for giving saldb'ar a reciprocating motion at right anglesto its laXis, a series of yrivetro i `,-larger diameters of which` areat least as v holders registering with said drivers, saidrivet-holders-.having tapering apertures the' largeas the lheads ofl therivets to be suspended therein, and each composed of two parts whichjoin inthe plane ofthe axis ofthe said apertures, `independent springsunited to eac vof said parts and normally holding them in contact, andka removable frame inclosing thek series of holders andl to which saidsprings are also joined, thus uniting the said holders ina series,which, when in place.

the said drivers, and a seriesof a'nvilsl or dies 'mounted upon a barsupportedupon the otheryof said beams, `soaslto register with saiddrivers and dies, and mechanism adapted to move said last-mentioned bartoward said rivetfholders, substantially as set forth. I i

51'In a machine ofthe Character described,

the combination of two laterally-movable parallel bars, a series ofrivet-drivers mounted upon one of said bars, a series of anvils or diesmountedvupon the other of said bars so. as to-register with saiddrivers, mechanyism ada ted to move each of said bars indeholders,registering with the said drivers and held in normal position by springswhich may yield so as to allow the parts ofthe holders to separate,and-rivets contained therein .to pass through and out .of the same, anda series of anvils or-dies registering with said drivers and holders andadapted to be moved simultaneously toward the same,

substantially as shown and described.

In testimony whereof I have axed my signature in resence of twowitnesses.

ILLIAM ALLISON, SR.

v `Witnesses:

AWALTER L. DANE, vJEANNETTE L. DANE.

